// Copyright (C) Stichting Deltares 2020. All rights reserved.
//
// This file is part of the Layer On Slope Tool.
//
// The Layer On Slope Tool is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System;
using System.IO;
using System.Reflection;
using System.Text;
using System.Xml.Serialization;

namespace Deltares.LayerOnSlopeTool.Io
{
    /// <summary>Serialize and de-serialize form XML
    /// DGSMStabDam.dll requires XML-element identifiers which are prefixed with "tns:" and "tnsb:".
    /// These prefixes cannot be handled by the automatic XML serializer object generation with XSD.exe
    /// So we apply pre- and post- processors to add and remove these prefixes.
    /// Also the XML identification header has to be changed to accomodate this.</summary>
    public class MStabDamXmlSerializer
    {
        private const string tnsPrefixSrc = "tnsPrefix";
        private const string tnsPrefixDest = "tns:";
        private const string tnsbPrefixSrc = "tnsbPrefix";
        private const string tnsbPrefixDest = "tnsb:";
        private const string idLineSrc =
            @"<tns:DamMStabDoc xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/2001/XMLSchema"">";
        private const string idLineDest =
            @"<tns:DamMStabDoc xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:tns=""http://deltares.nl/2008/DamMStabDocDefinition"" xmlns:tnsb=""http://deltares.nl/2008/DamMStabInputDefinition"">";

        /// <summary>
        /// Saves the tnsPrefixDamMStabDoc as XML.
        /// </summary>
        /// <param name="filename">The filename.</param>
        /// <param name="tnsPrefixDamMStabDoc">The tnsPrefixDamMStabDoc.</param>
        public static void SaveDamMStabDocAsXmlFile(string filename, tnsPrefixDamMStabDoc tnsPrefixDamMStabDoc)
        {
            string xmlString = SaveDamMStabDocAsXmlString(tnsPrefixDamMStabDoc);
            File.WriteAllText(filename, xmlString, Encoding.ASCII);
        }

        /// <summary>
        /// Loads the tnsPrefixDamMStabDoc from XML.
        /// </summary>
        /// <param name="filename">The filename.</param>
        /// <returns>tnsPrefixDamMStabDoc object</returns>
        public static tnsPrefixDamMStabDoc LoadDamMStabDocFromXmlFile(string filename)
        {
            string xmlString = File.ReadAllText(filename);
            tnsPrefixDamMStabDoc tnsPrefixDamMStabDoc = LoadDamMStabDocFromXmlString(xmlString);
            return tnsPrefixDamMStabDoc;
        }

        /// <summary>
        /// Saves the tnsPrefixDamMStabDoc as XML string.
        /// </summary>
        /// <param name="tnsPrefixDamMStabDoc">The tnsPrefixDamMStabDoc.</param>
        /// <returns>xm string</returns>
        public static string SaveDamMStabDocAsXmlString(tnsPrefixDamMStabDoc tnsPrefixDamMStabDoc)
        {
            tnsPrefixDamMStabDoc.tnsPrefixFileIdentification = CreateFileIdentification();
            XmlSerializer xmlSerializer = new XmlSerializer(typeof(tnsPrefixDamMStabDoc));
            TextWriter writer = new ExtentedStringWriter(new StringBuilder(), Encoding.UTF8);
            xmlSerializer.Serialize(writer, tnsPrefixDamMStabDoc);
            string xmlString = writer.ToString();
            xmlString = PreProcessPrefixes(xmlString);
            return xmlString;
        }

        private static string PreProcessPrefixes(string xmlString)
        {
            xmlString = xmlString.Replace(tnsbPrefixSrc, tnsbPrefixDest);
            xmlString = xmlString.Replace(tnsPrefixSrc, tnsPrefixDest);
            xmlString = xmlString.Replace(idLineSrc, idLineDest);
            return xmlString;
        }

        /// <summary>
        /// Loads the tnsPrefixDamMStabDoc from XML string.
        /// </summary>
        /// <param name="xmlString">The XML string.</param>
        /// <returns>tnsPrefixDamMStabDoc object</returns>
        public static tnsPrefixDamMStabDoc LoadDamMStabDocFromXmlString(string xmlString)
        {
            xmlString = PostProcessPrefixes(xmlString);
            tnsPrefixDamMStabDoc tnsPrefixDamMStabDoc;
            XmlSerializer xmlSerializer = new XmlSerializer(typeof(tnsPrefixDamMStabDoc));
            StringReader reader = new StringReader(xmlString);
            tnsPrefixDamMStabDoc = (tnsPrefixDamMStabDoc)xmlSerializer.Deserialize(reader);
            return tnsPrefixDamMStabDoc;
        }

        private static string PostProcessPrefixes(string xmlString)
        {
            xmlString = xmlString.Replace(tnsbPrefixDest, tnsbPrefixSrc);
            xmlString = xmlString.Replace(tnsPrefixDest, tnsPrefixSrc);
            xmlString = xmlString.Replace(idLineDest, idLineSrc);
            return xmlString;
        }

        private static tnsPrefixDamMStabDocTnsPrefixFileIdentification CreateFileIdentification()
        {
            tnsPrefixDamMStabDocTnsPrefixFileIdentification tnsPrefixDamMStabDocFileIdentification = new tnsPrefixDamMStabDocTnsPrefixFileIdentification();
            var hostAssembly = Assembly.GetEntryAssembly();
            if (hostAssembly == null)
            {
                hostAssembly = Assembly.GetExecutingAssembly();
            }
            tnsPrefixDamMStabDocFileIdentification.Application = hostAssembly.GetName().Name;
            tnsPrefixDamMStabDocFileIdentification.Version = hostAssembly.GetName().Version.ToString();
            tnsPrefixDamMStabDocFileIdentification.Created = DateTime.Now.ToString("yyyy-MM-dd") + "T"+ DateTime.Now.ToString("HH:MM:s") + "Z";
            tnsPrefixDamMStabDocFileIdentification.Company = "Deltares";
            return tnsPrefixDamMStabDocFileIdentification;
        }

    }
}